GHK-Cu calculators

A 50 mg GHK-Cu vial mixed with 5 mL of bacteriostatic water gives 10 mg/mL. A 2 mg dose pulls 0.2 mL or 20 units. The vial covers 25 doses — about 5 weeks at the 5-times-weekly cadence common in copper-peptide protocols.

One GHK-Cu-specific failure mode worth knowing before you use the reconstitution math: Calculating the dose based on the wrong concentration after reconstitution. What does a 'tripeptide' mean? A peptide is a short chain of amino acids. The prefix 'tri-' means three. So, a 'tripeptide' is simply a molecule made of three amino acids linked together. In the case of GHK-Cu, those three amino acids are Glycine, Histidine, and Lysine.

Vial size, diluent volume, and dose are the three inputs that genuinely change the answer. Doses-per-vial is a derived output — it's the vial mg divided by the dose mg, rounded down. The most common edge case is a tiny dose: at very high concentration, a 0.1 mL draw is only a few units on the syringe, which is hard to read accurately. If your unit count drops below five, consider reconstituting the next vial with more BAC water so each dose covers a larger volume.

Reconstituting GHK-Cu powder is a straightforward but precise process. The goal is to mix the freeze-dried powder with a sterile diluent, most commonly bacteriostatic (bac) water, to create a solution for use. You'll need the vial of GHK-Cu, your bottle of bac water, and an alcohol wipe. First, make sure you have the correct amounts. In our example, we are using a 50mg vial of GHK-Cu and will be adding 5mL of diluent. This specific ratio is important because it determines the final concentration of the solution, which you need to know to draw an accurate dose. Before you start, wipe the tops of both the peptide vial and the bac water with an alcohol swab to keep everything sterile. It's a simple step that helps prevent contamination of your peptide solution.

To perform the mixing, you will use a syringe to draw the diluent and inject it into the peptide vial. For our example, you would draw exactly 5mL of bac water into a syringe. When you inject the water into the GHK-Cu vial, aim the needle against the side of the glass, not directly into the powder. Let the water gently run down the side and dissolve the peptide. GHK-Cu powder is quite delicate, and shooting the water directly onto it can sometimes damage the molecules. Once the water is in, don't shake the vial. Instead, gently swirl it or roll it between your hands until the blue powder is fully dissolved and the solution is clear (but still blue). Shaking can cause the peptide to degrade, so a gentle touch is key to preserving its integrity for your research.

Once mixed, it's time to understand the concentration you've created. This is simple math. You divided the total milligrams of the peptide by the total milliliters of water. In our case, that's 50mg of GHK-Cu divided by 5mL of bac water. This gives you a concentration of 10mg per 1mL. Knowing this is critical for dosing. If your target dose for your protocol is 2mg, you can now calculate the exact volume you need to draw. Since there are 10mg in a full milliliter, a 2mg dose would be 0.2mL of the solution. You would draw this volume using a new, sterile insulin syringe for each application. Always double-check your math to ensure you're tracking your intended dose accurately.